KINETICS AND MECHANISM OF THE OXIDATION OF
ALIPHATIC ALCOHOLS BY TETRAAMMINECOPPER(II)
BIS(PERMANGANATE)
Gifty Sharma, Jayshree Banerji, Priyanka Purohit, Pradeep K. Sharma, Kalyan K. Banerji.
Abstract
The oxidation of aliphatic alcohols by tetraamminecopper(II) bis(permanganate) (TACP) in aqueous acetic acid leads to the formation of
corresponding carbonyl compounds. The reaction is first order with respect to TACP. A Michaelis-Menten type kinetics is observed with
respect to alcohols. The reaction shows a first order dependence on hydrogen ions. The oxidation of [1,1-
2H2]ethanol and [2-
2H]propan-2-
ol exhibits the presence of a substantial primary kinetic isotope effect (kH/kD = 3.52 and 3.96 respectively at 298 K). The rate of
disproportionation of the intermediate is susceptible to both polar and steric effects of the substituents. A suitable mechanism has been
proposed.
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